Paper, 'On the graduation of the thermometers supplied from the Kew Observatory [London] for the use of the Arctic searching expedition under Sir Edward Belcher' by John Welsh Welsh describes the process of calibrating a set of mercurial and spirit thermometers graduated for low temperatures. Subject: Scientific apparatus and instruments / Meteorology Written by Welsh at Kew Observatory. This paper was published in full in volume 6 of Abstracts of the Papers Printed in the Philosophical Transactions of the Royal Society of London [later Proceedings of the Royal Society] as 'On the graduation of the thermometers supplied from the Kew Observatory for the use of the arctic searching expedition under Sir Edward Belcher'. 21 April 1852